Our Experienced Staff

Dave Scharfenberger

President
Board Certified Master Arborist
Certification # WI-0131B

board master certified arborist President & ISA Board Certified Master Arborist, Dave Scharfenberger is a graduate of the University of Wisconsin - Stevens Point with a BS in Urban Forestry and has over 36 years of experience in the science of tree care. Dave is on the Board of Directors and Treasurer on the Executive Committee of the International Society of Arboriculture. Dave is also a Wisconsin Arborist Association Honorary Life Member and is an active member of the Tree Care Industry Association and the Wisconsin Landscape Contractors Association. He is a past president of the Wisconsin Arborist Association and is a recipient of their Distinguished Service Award. Dave has also received the Wisconsin Urban Forestry Council's Distinguished Service Award. Dave is on the Wisconsin Department of Natural Resources Emerald Ash Borer Management Panel.

Contact Dave

 

Jeff Wilson

Vice President
Certified Arborist
Certification # IL-0099A

certified arborist Vice President & ISA Certified Arborist, Jeff Wilson is a graduate of Northland College with a BS in Biology and has over 36 years of experience in the science of tree care. Jeff is active in the International Society of Arboriculture, Wisconsin Arborist Association, Tree Care Industry Association and Wisconsin Landscape Contractors Association. Jeff has been an advisor to the Forestry programs at UW Stevens Point, MATC, and Mid-State Technical College since 2001.

Contact Jeff

 

Paul Markworth

CFO & Consulting Arborist
Board Certified Master Arborist
Certification # WI-0153B

board master certified arborist ISA Board Certified Master Arborist, Paul Markworth has a BS degree in Forest Management from Purdue University and has over 41 years of experience working with trees and their problems. He is a past president of the Wisconsin Arborist Association and has received both their Distinguished Service and Honorary Life Member Awards. Also the TCIA Volunteer of the Year award. Past member of the ANSI Z133 Safety Committee and current member of the ISA Science & Research Committee.

Contact Paul

 

Tony Arnoldi

Chief Diagnostician
Board Certified Master Arborist
Certification # WI-0102B

board master certified arborist Chief Diagnostician & ISA Board Certified Master Arborist, Tony Arnoldi has over 34 years of field experience in the diagnosis, treatment and maintenance of trees and shrubs. Tony received his BS degree in Forest Science from the University of Wisconsin. He is also a licensed and certified pesticide applicator. Tony is a member of the International Society of Arboriculture, the Tree Care Industry Association and the Wisconsin Arborist Association where he served on the Board of Directors for several years. Tony's projects have won two Excellence in Arboriculture Grand Awards.

Contact Tony

 

Jeff Hagfors

Diagnostician
Certified Arborist
Certification # WI-0181A

certified arborist Diagnostician & ISA Certified Arborist, Jeff Hagfors has been caring for trees for over 27 years. Jeff graduated from the University of Wisconsin - Stevens Point with a BS degree in Forestry. He is a member of the International Society of Arboriculture, the Tree Care Industry Association and the Wisconsin Arborist Association. One of Jeff's projects won the 2002 Excellence in Arboriculture Grand Award. He is also a member of the City of Greenfield Tree Board.

Contact Jeff

 

John Gall

Municipal Specialist
Certified Arborist
Certification # WI-0249AM

certified arborist municipal specialistSpecial Projects Coordinator & ISA Certified Arborist / Municipal Specialist, John Gall is a graduate of Purdue University with a BS in Forest Management and was the first master's candidate to receive a MS degree in Urban Forestry from Purdue. He has 39 years of experience working with the management of trees, including 20 years heading municipal forestry programs. John is a past president of the Wisconsin Arborist Association and has received both their Distinguished Service and Honorary Life Member Awards. He is currently serving as a member of the Wisconsin Urban Forestry Council. Won an Excellence in Arboriculture Award.

Contact John

 

Jean Ferdinandsen

Former Waukesha County Extension Agent
Diagnostician
Certified Arborist
Certification # WI-0149A

certified arborist Diagnostician & ISA Certified Arborist, Jean Ferdinandsen graduated from the University of Wisconsin with BS and MS degrees in Horticulture. She is also a licensed and certified pesticide applicator. Jean is a member and past president of the Wisconsin Arborist Association, and has received their Distinguished Service Award. A Life-Member of the International Society of Arboriculture, and former Waukesha County extension agent. Jean has over 35 years of experience in the care of trees and shrubs and diagnosing their problems.

Contact Jean

 

Bill Reichenbach

Arborist BillDiagnostician
Certified Arborist
Certification # WI-0188A

certified arborist Bill has been working with and caring for trees, and designing landscapes for 31 years. He graduated from the University of Wisconsin - Madison with a BS degree in Horticulture. He has served on the board of directors of the Wisconsin Arborists Association in the early 1990's. Bill has appeared on PBS's 'The Victory Garden' and 'The Wisconsin Gardener' over the years. In 2005 Bill received an International Society of Arboriculture Gold Leaf Award and a Wisconsin Urban Forestry Council Award working with the City of Waukesha in preserving the Dunbar oak. Bill represented Wachtel Tree Science in receiving the ISA Gold leaf Award in 2010, recognizing Wachtel’s work with Ronald McDonald House.

Contact Bill

 

Ron Gumz

Diagnostician
Certified Arborist
Certification # MN-0324A

certified arborist A diagnostician and International Society of Arboriculture certified arborist; Ron has been caring for trees for over 13 years. Ron graduated from the University of Wisconsin - Stevens Point with a bachelor's degree in Urban Forestry. He is a member of the International Society of Arboriculture and Wisconsin Arborist Association. Ron is also a licensed and certified pesticide applicator.

Contact Ron

 

Office Staff

Wachtel Office staff
left to right in picture:
Brandy Holtz - Executive Administrative Manager
Mary Schmitt - Administrative Assistant
Ellen Filley - Administrative Assistant


 

The Wachtel Crew

Wachtel's Team

NameStart Date 12/31/10
Years in Field		Degree Certified
Arborist		NotesPosition
Brian Anderson  Jan-2003         Mechanic
Tony Arnoldi  Jun-1985 31 4 Yr WI-0102B  BCMA Diagnostician
Kyle Babicky  Feb-2011  1 4 Yr  WI-0889A  

Arborist/Trainee
Colin Barnes  Jul-2007         Mechanic
Dan Barwinski  Oct-2006 4 4 Yr

WI-0716A

   Arborist/PHC
Janet Doss  May-1990 21 4 Yr

WI-0179A

   PHC Supervisor
Jean
Ferdinandsen		  Feb-2003 35  Masters

WI-0149A

  

Diagnostician
Ellen Filley May-2007
36       Client Relations Assistant
Peter Gailans  Oct-2008 3 4 Yr.

WI-0848A

   Arborist/Trainee
John Gall  Mar-2002 37  Masters

WI-0249AM

  M A & C Sales
Andrew Garens  Oct-2007 3 4 Yr.

WI-0771A

   Arborist
Keith Glaznap  Apr-2007 10 4 Yr.

WI-0678A

   Arborist/PHC
Adrian Gontea  Nov-2008 3 2 Yr.

WI-0793A

   Arborist Trainee
Ron Gumz  Feb-2006 12 4 Yr.

MN-0324A

  

Diagnostician

/Foreman
Jeff Hagfors  Aug-1997 27 4 Yr.

WI-0181A

  

Diagnostician
Brandy Holtz  Dec-2001 20 4 Yr.  
Executive Administrative Manager
Brent Kahn  Nov-2001 24 2 Yr. WI-0302A   T & L Supervisor.
Matt Kennedy  Apr-2008 4 4 Yr. WI-0773A   Arborist
Mike Klein  Aug-1989 20   WI-0306A   Arborist/PHC
Killian Markworth  Dec-2010          Facility Maintenance
Paul Markworth  Mar-1994 42 4 Yr. WI-0153B
 ASCA
BCMA		 Partner
Bill Reichenbach  Jul-2008 32 4 Yr. WI-0188A  

Diagnostician
Ben Reince Jan-2003 8 4 Yr. WI-0610A CTSP Arborist/Safety Coor.
Ryan Rodefer May-2010 2 4 Yr. WI-0883A   Arborist
Dave Scharfenberger Mar-1994 36 4 Yr. WI-0131B ASCA
BCMA		 Partner
Paul Scharfenberger Jul-1997 9 4 Yr. WI-841A   Arborist/Foreman
Mary Schmitt Sep-1994 51       Administrative Assistant
Darin Schmuki May-2004 6 4 Yr. WI-0682A   Arborist/Foreman
Nathan Schuettpelz May-2010 2 4 Yr. WI-0887A   Arborist/Trainee
Jeff Schulz Apr-1990 23 4 Yr. WI-0288A   Arborist/PHC Tech
Gary Stanwood May-1994 32 Masters WI-0572A   Summer PHC
Steve Suhaysik  May-2011    4 Yr. SO-6528A     Arborist/Trainee
Jeff Wilson Mar-2007 36 4 Yr. IL-0099A   Partner
TOTAL: 33 
27 Arborists		  
 

Testimonials

Paul Taylor - Waukesha
"As we've come to expect... and very much appreciated...the job was done well in every respect. Kudos"
B. G. Lake Geneva
" Great crew!"

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Winter tree care and pruning newsletter

Winter 2010 Newsletter
Tips to winterize

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International Society of Arboriculture The Tree Care Industry Association Wisconsin Arborist Association
77

YEARS

of tree care

1935
2012